* {
  padding: 0;
  margin: 0;
}

ul {
  list-style: none;
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  line-height: 50px;
  background-color: #fff;
}

ul li {
  flex: 1;
  text-align: center;
}

.active {
    color: red;
}

dl {
    height: 50px;
    border-bottom: 1px solid #ccc;
}

dl dt{
    font-size: 20px;
}

dl dd {
    font-size: 12px;
    color: gray;
}

input{
    width: 100%;
    height: 30px;
    line-height: 30px;
}
